The most significant thing, of course, is that the “sufficient progress” requirement has not been met. This means the future relationship will not be discussed in the next (October) negotiation round at least.

But this is not the first time Tusk has talked about Brexit and realism.

This is from last September, in the months after the referendum vote:

We need optimistic scenario for EU27 future. But it requires realistic diagnosis of causes of Brexit & its consequences for Europe